Table 2.
Characteristics of subjects and intake rates
| Characteristic | Placebo group | Quercetin-rich onion group |
p |
|---|---|---|---|
| Subjects (n) | 33 | 28 | — |
| Male (n) | 15 | 12 | 1.00 |
| Age (year) | 71 ± 4 | 69 ± 4 | 0.13 |
| Body fat percentage (%) | 25.9 ± 6.0 | 27.0 ± 6.5 | 0.51 |
| Body mass index (kg/m2) | 22.3 ± 3.0 | 22.6 ± 3.1 | 0.71 |
| MMSE (score) | 27.5 ± 1.4 | 27.1 ± 1.5 | 0.40 |
| Education periods (year) | 12 ± 2 | 13 ± 2 | 0.073 |
| Intake rate (%) | 98.3 ± 2.4 | 98.3 ± 3.2 | 0.62 |
Values are shown as mean ± SD. Fisher’s exact probability test was used for sex, and the Mann–Whitney U test was used for Mini-Mental State Examination (MMSE) score, education periods, and intake rate. Student’s t test was used for other characteristics.